In glycolysis, 2 ATPs are put in and 4 ATPs are produced, so the net gain is 2 ATP.
If it is an animal like an eagle or one who preys on other animals it is a Carnivore, if it is an animal such as a cow or mouse it is herbivore, if it is a mushroom or other fungus it is decomposer, and if it is a plant like a tree or flower it is a producer.
Pretty much, yes. They burn up in the atmosphere, usually far higher than the ozone layer.
